I dont have one but I have a friend that does and I just wondered has anyone ever had problems feeding a lawnmower blenny and what did they eat. I have a black sailfin blenny that eats but I dont buy any fish that I dont see eating at the LFS. The problem with the lawnmower blenny is that people buy them to eat nuisance algea but once it runs out the fish ends up starving to death because it wont eat prepared foods. Anybody have any ideas that have worked for you?

Has your buddy tried soaking frozen in garlic?  This is no guarantee but may entice him to eat.